analyse_media
Reading File
Here is a full interpretation of this ECG:
ECG Report Analysis
Measured Parameters
| Parameter | Value | Normal Range |
|---|---|---|
| Heart Rate | 52 bpm | 60-100 bpm |
| PR Interval | 128 ms | 120-200 ms |
| QRS Duration | 144 ms | <120 ms |
| QT / QTc | 476 / 437 ms | QTc <440 ms (borderline) |
| P-R-T Axes | 73° / 105° / -24° | P: normal; QRS: rightward |
Diagnoses (confirmed by waveform review)
1. Sinus Bradycardia (52 bpm)
- The rhythm is sinus (upright P waves in lead II, PR axis 73°), but the rate is below 60 bpm.
- Causes range from benign (athletic heart, vagal tone, sleep) to pathological (hypothyroidism, sick sinus syndrome, beta-blocker/calcium channel blocker use, inferior MI).
2. Complete Right Bundle Branch Block (CRBBB)
This is the dominant finding. Diagnostic criteria are all met:
- QRS duration 144 ms (must be ≥120 ms for complete RBBB)
- rsR' pattern ("bunny ears" / M-shape) in V1-V2 - the hallmark of RBBB, representing delayed right ventricular depolarization
- Wide, slurred S waves in leads I, aVL, V5, V6 - representing the delayed rightward terminal conduction
- Secondary ST-T changes in V1-V3 (T-wave inversions) - expected and not independently concerning
3. Right Axis Deviation (QRS axis 105°)
- QRS axis 105° (normal: -30° to +90°)
- Negative QRS in lead I + positive QRS in leads II, III, aVF confirms rightward shift
- In the context of RBBB, right axis deviation raises the possibility of left posterior fascicular block (LPFB) coexisting - a combination called bifascicular block
Clinical Significance
The combination of CRBBB + Right Axis Deviation = Bifascicular Block
This means two of the three fascicles of the His-Purkinje system are affected:
- Right bundle branch (blocked)
- Left posterior fascicle (deviated axis suggests possible block)
Clinical implications:
- If this is new onset, it warrants urgent cardiology evaluation - it can progress to complete (3rd degree) heart block
- If this is chronic/known, it requires periodic monitoring but may be stable for years
- The bradycardia (52 bpm) alongside bifascicular block increases the concern for significant conduction system disease
- QTc of 437 ms is borderline - avoid QT-prolonging drugs
Recommended workup:
- Compare with prior ECGs (is this new?)
- Echocardiogram (to evaluate structural heart disease, RV dilation, cardiomyopathy)
- Thyroid function tests (hypothyroidism causes both bradycardia and conduction disease)
- Electrolytes (K+, Mg2+)
- Consider Holter monitor if symptomatic (dizziness, syncope, palpitations)
- Cardiology referral if new finding or symptomatic
Note: The machine interpretation labels this "Minimally Abnormal or Normal Variation ECG," but bifascicular block with symptomatic bradycardia is not a normal variant - this ECG warrants clinical correlation and follow-up. Always confirm automated readings with physician review as stated on the printout.
IMG_5624.jpg
Previous ecg
analyse_media
Here is the previous ECG analysis, followed by a direct comparison with the current one:
Previous ECG - Analysis
Measured Parameters
| Parameter | Previous ECG | Current ECG | Change |
|---|---|---|---|
| Heart Rate | 89 bpm | 52 bpm | ↓ Slowed significantly |
| PR Interval | 128 ms | 128 ms | No change |
| QRS Duration | 128 ms | 144 ms | ↑ Widened further |
| QT | 391 ms | 476 ms | ↑ Prolonged |
| QTc | 476 ms | 437 ms | - |
| QRS Axis | 114° | 105° | Similar (right axis) |
| T Axis | -64° | -24° | Normalised slightly |
Previous ECG Diagnoses
- Sinus Rhythm (rate 89 bpm - normal range)
- Right Bundle Branch Block (RBBB) - QRS 128 ms, rsR' in V1-V2, wide S waves laterally
- ST Elevation secondary to IVCD (Intraventricular Conduction Delay) - machine attributes lateral ST changes to the RBBB itself
- Minimal ST Elevation in lateral leads (I, aVL, V5, V6) - ST >0.06 mV
- Baseline wander in V5
- Right Axis Deviation (QRS 114°)
- Classified as: ABNORMAL ECG - Unconfirmed Diagnosis
Side-by-Side Comparison
| Feature | Previous ECG | Current ECG | Clinical Significance |
|---|---|---|---|
| Rate | 89 bpm (normal) | 52 bpm (bradycardia) | New significant bradycardia |
| Rhythm | Sinus | Sinus | Stable |
| QRS width | 128 ms (RBBB) | 144 ms (CRBBB) | Conduction worsening |
| Axis | 114° (RAD) | 105° (RAD) | Stable |
| RBBB | Present | Present | Persistent |
| ST changes | Lateral ST elevation >0.06 mV | Less prominent | Possibly resolving or rate-related |
| Machine label | ABNORMAL ECG | "Minimally abnormal" | Machine underestimates current ECG |
Key Clinical Takeaways from Comparison
1. The RBBB is chronic (present on both ECGs) - this is reassuring; it is not a new block from an acute event like MI or PE.
2. The heart rate has dropped from 89 → 52 bpm - this is a new and concerning development. Combined with a pre-existing bifascicular block, new bradycardia raises the possibility of:
- Progressive conduction system disease (now involving the AV node or sino-atrial node)
- Drug effect (beta-blockers, digoxin, amiodarone, calcium channel blockers)
- Hypothyroidism
- Sick Sinus Syndrome
- Lyme carditis or other infiltrative disease
3. The QRS has widened from 128 ms → 144 ms - further widening of an already-wide QRS suggests the conduction disease is progressing, not stable.
4. The ST elevation in lateral leads (I, aVL, V5, V6) seen on the previous ECG was attributed by the machine to the RBBB itself (secondary repolarization) - but the fact that it appears less prominent now is worth noting. A prior lateral STEMI should be excluded if clinically indicated.
Overall Assessment
This patient has known RBBB with right axis deviation (bifascicular block), which is now accompanied by new sinus bradycardia and progressive QRS widening. This clinical progression from the previous ECG warrants:
- Urgent cardiology review
- Medication review (rule out drug-induced bradycardia)
- Holter monitor or inpatient telemetry if symptomatic
- Echocardiogram (structural heart disease, cardiomyopathy)
- Consideration of pacemaker implantation if symptoms (syncope, pre-syncope, dizziness) are present - bifascicular block + new bradycardia carries a risk of progressing to complete heart block
analyse_media
Echocardiogram at Admission - Narayana Medical College Hospital
Patient: N. Harinath | Age/Sex: 60 years, Male
Echo Findings - Interpreted
| Finding | Detail | Significance |
|---|---|---|
| Dilated LA / RV / RA | All three chambers enlarged | Right heart and left atrial pressure overload |
| D-shaped LV | Interventricular septum bows into LV | Hallmark of severe right ventricular pressure/volume overload |
| Normal LV function | EF 56% | Left ventricular systolic function preserved |
| Severe TR | Severe tricuspid regurgitation | Major driver of RV/RA/LA dilation and symptoms |
| RV dysfunction | Severe | Confirmed by TAPSE 1.2 cm (see below) |
| Mild to moderate MR | Mitral regurgitation | Secondary - likely functional due to elevated pressures |
| Mild AR, No AS | Mild aortic regurgitation, no aortic stenosis | Minor finding |
| No clot / No PE | No intracardiac thrombus, no pulmonary embolism | Important negative |
| EF 56% | Preserved ejection fraction | LV systolic function intact |
Key Measurements
IVCD (IVC Diameter): 2.3 cm
- Normal IVC diameter <2.1 cm
- 2.3 cm + likely poor respiratory collapse = elevated right atrial pressure / CVP
- Consistent with severe right heart failure
TAPSE: 1.2 cm
- TAPSE (Tricuspid Annular Plane Systolic Excursion) measures RV longitudinal function
- Normal: >1.7 cm
- 1.2 cm = severely reduced RV function
- Consistent with the "severe RV dysfunction" noted
Integrating All Three Investigations
Now putting the ECG and Echo together, a clear clinical picture emerges for this 60-year-old male:
The Diagnosis: Cor Pulmonale / Right Heart Failure with Severe TR
| Domain | Finding | Interpretation |
|---|---|---|
| Echo | Dilated RV, RA, LA; D-shaped LV; TAPSE 1.2 cm | Severe right ventricular pressure overload and failure |
| Echo | Severe TR | Either the cause or a major consequence of RV dilation |
| Echo | IVC 2.3 cm | Raised venous pressure / right heart failure |
| Previous ECG | RBBB + RAD, rate 89 | Bifascicular block - right heart strain pattern |
| Current ECG | RBBB + RAD, rate 52 | Worsening conduction disease, new bradycardia |
What is causing the right heart failure?
The D-shaped LV + severe TR + dilated right chambers with a preserved LV EF (56%) points toward primary right heart disease or pulmonary hypertension. Possibilities:
- Pulmonary arterial hypertension (PAH) - most likely cause of this pattern
- Chronic cor pulmonale from COPD/ILD/OSA
- Rheumatic heart disease with severe TR ± MS (mild MR noted)
- Isolated severe TR causing right heart remodeling (functional or primary)
The RBBB in context
RBBB with RAD in a patient with echo-proven RV dilation and failure is a right heart strain pattern - the conduction disease is a consequence of chronic RV pressure/volume overload stretching and fibrosis of the right bundle.
The new bradycardia (89 → 52 bpm)
This is concerning - progressive conduction disease from RV dilation has now begun affecting sinus node function or AV conduction.
Priority Actions
- Pulmonary artery pressure estimation - was RVSP/PA pressure measured on echo? This is the key missing value
- Cause of pulmonary hypertension workup: CT chest (COPD, ILD, CTEPH), sleep study (OSA), RHC if needed
- Cardiology + Pulmonology co-management
- Diuresis for right heart failure (fluid overload - elevated IVC, dilated chambers)
- Watch bradycardia closely - pacemaker threshold should be discussed given bifascicular block + rate 52
- Avoid medications that worsen bradycardia or raise pulmonary vascular resistance
- Anticoagulation assessment - severe TR + dilated RA = risk of AF and thrombus
This is a shared conversation. Sign in to Orris to start your own chat.